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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / August 2007Bucking Justy
My manual 1990 Subaru Justy has only 80K, but suddenly started bucking, jerking, and hesitating... as if it's engine is really cold... even when it's warmed up. As a driver, it feels like trying to get water out of a kinked hose... I need to tease the accelerator to get power. Fuel efficency down about 10%, too. Thanks! > My manual 1990 Subaru Justy has only 80K, but suddenly started > bucking, jerking, and hesitating... as if it's engine is really > cold... even when it's warmed up. As a driver, it feels like trying to > get water out of a kinked hose... I need to tease the accelerator to > get power. Fuel efficency down about 10%, too. Thanks! Suspect ignition issue first - plugs, wires, etc. The Justy is only a 3 cylinder engine so loosing one will really be noticed, unlike loosing one cylinder on a V8. > bndscn...@wildoats.com wrote: > [quoted text clipped - 7 lines] > cylinder engine so loosing one will really be noticed, unlike loosing > one cylinder on a V8. Thanks, my husband looked at the plugs and wires, and they looked clean... but a mechanic at a picnic said you can't tell by looking. You're right 2 outta 3 IS bad when you're talking engines! >> bndscn...@wildoats.com wrote: >> [quoted text clipped - 10 lines] > clean... but a mechanic at a picnic said you can't tell by looking. > You're right 2 outta 3 IS bad when you're talking engines! One test for a bad wire is to open the hood in the dark with th engine running and spray mist the wires with water. If you have a bad plug wire, it will show sparks all over. On a 90 with a 'dead' gas pedal, I also would be looking at the fuel filter unless it is one of those permanent in tank ones. A blocked air filter will also cause bucking and no power and a loss in gas mileage. One other test is to crack the gas cap open and see if it runs better. If so, the air filter for the gas tank vent could be blocked. I don't know where that is on yours though. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's - Gone to the rust pile... Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pictures.html?id=2115147590 (More Off Road album links at bottom of the view page) |
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